Process for producing phosphorus

Abstract

A process for producing phosphorus, which comprises supplying a phosphorite ore to melting simultaneously with feeding paraffin or higher fatty acids C 20 -C 24 , melting the phosphorite ore in the presence of a reducing agent and quartzite with the formation of flue gases containing vapours of phosphorus. The flue gases are subjected to cleaning and condensation with the recovery of phosphorus and the formation of a slime. The slime is subjected to extraction with paraffin or higher fatty acids C 16 -C 24 to recover phosphorus therefrom.

What is claimed is: 
     
       1. A process for producing phosphorus comprising: supplying a phosphorite ore to melting simultaneously with feeding molten paraffin or molten higher fatty acids C 20  -C 24  ;   melting of the phosphorite ore in the presence of a reducing agent and quartzite with the formation of flue gases containing vapours of phosphorus;   cleaning of the flue gases and condensation thereof with water to recover phosphorus with the formation of a slime;   recovering phosphorus from the slime by treatment thereof with an organic extraction agent selected from the group consisting of molten paraffin and molten higher fatty acids C 16  -C 24 .   
     
     
       2. A process as claimed in claim 1, wherein the supply of molten paraffin is effected in an amount of 0.05 to 0.2% by mass of the supplied phosphorite ore. 
     
     
       3. A process as claimed in claim 1, wherein the supply of molten higher fatty acids C 20  -C 24  is effected in an amount of 0.05 to 0.3% by mass of the supplied phosphorite ore. 
     
     
       4. A process as claimed in claim 1, wherein for the recovery of phosphorus the slime is subjected to extraction with molten paraffin at a mass ratio thereof of 1:1-4. 
     
     
       5. A process as claimed in claim 1, wherein for the recovery of phosphorus the slime is extracted with molten higher fatty acids C 16  -C 24  at a mass ratio thereof of 1:1-2.